Rotary engine



No. 743,832. PATENTED JAN. 5, 1904.

P. A. ANDBRSDN.

ROTARY ENGINE.

APPLICATION FILED MAR. 14, 1900.

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No. 748,832. lATENT ED'JAN. 5, 1904. P. ANDERSON,

ROTARY ENGINE.

APPLIOATION FILED MAR. 14, 1900;

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' v INVENTOR W n E5555: 3 2 Y I Z Man/I I M r 4f!r 7i rzey3 No. 748,832. PATENTE'D JAN. 5, 1904.

I P. A. ANDERSON.

ROTARY ENGINE.

APPLICATION FILED MAR. 14. 1900 N0 MODEL. I 5 SHEETSSEEET 3.

INVENTOR WITNESSES: Q fgkffiflwaom I PATENTED JAN. 5,1904. P. A. ANDERSON} ROTARY ENGINE. APPLIUATIOH FILED MAR. 14, 1900.

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Affarrzeys N0. 748,832. PATENTED JAN. 5, 1904.

P. A. AN-nBRsog. ROTARY ENGINE APPLIOATION FILED MAB 14.1900.

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f/yz/Exv-rog g Eni ma 750m x )l/lamcys UNITED STATES Patented January 5, 1904.

PATENT OFFICE.

ROTARY ENGINE.

' SPECIFICATION forming part of LettersPatent No. 748,832, dated January 5, 1904. Application filed March 14, 1900. Serial No. 8,669. (lilo model.)

f0 aZZ whom it may concern.-

Be it known that I, PETER A. ANDERSON, a

citizen of the United States, residing at Grandin, in the county of Cass and State of North 5 Dakota, have invented certain new and usethe rotary piston-blades are carried bya sleeve secured to the main shaft of the engine and that the valve-operating gear is controlled by and in gear with said main fined in the appended claims.

The details of construction of the engine will be fully described hereinafter and its novel features defined in the appended claims.

In the accompanying drawings, which form a part of this specification, Figure 1 is a side elevation of an engine embodying the invention. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a top plan view. Fig. 4 is a transverse section on line 6 6 of Fig.2. Figs. 5 and 6 are views in perspective of the cylindrical valve and rectangular'abutment, respectively. Figs. 7, 8, and 9 are plan; side,

and perspective views of a portion of the en-.

gine, illustrating the radial piston-blades, also the piston-bearings.

- The reference-numeral 1 designates the base and framework of the engine, comprising a rectangular box-like structure at one end of which is located the engine cylinder or casing 2 and at the opposite end a pair of parallel bracket-standards 3. The casing consists of an inclined base or bottom 4:,joined to the side walls and adjacent end wall of the framework 1, an upwardly-inclined front wall 5, secured between the side walls of the frame-box, and a removable semicylindrical the frame-box 1. work are recessed at opposite points 10 to receive s'emibearings 11, which cooperate with My invention relates to rotary engines, and

A further feature of the invention is that shaft, as hereinafter. fully described, and desection6, provided with horizontal flanges land 8, which are bolted to corresponding flanges 9, projecting from the upper edgesof The flanges 9 of the framesemicircular bearing-blocks 12 to form complete bearings for the main shaft 13 of the engine.

Upon the shaft 13 is rigidly secured by a spline and feather or other means a sleeve 14, the ends of which fit revolubly within semicircular seats or recesses 15, formed on the inner sides of the side walls of the frameboX. The sleeve 14 is formed near each of its ends with an annular recess 16, within which is secured a steam-tightpacking-ring 17.

From diametrically opposite sides of the sleeve 14 project radial piston-blades, each preferably comprising two rectangular plates 18 and 19, between which is secured a packing 20, of anysuitable material, the outer edges 21 of which project slightly beyond the outer edges of the plates 18 and 19 at the sides and ends of the latter to have steamtight contact with the inner surfaces of the section 6 of the casing.

The shaft 13 projects beyond its bearings at both ends and at one end carries a bandwheel 22 and at its opposite end a gear-wheel 23 and a fly-wheel 24, all of said wheels being keyed rigidly to the shaft to revolve therewith.

The semicircular section 6 of the casing is recessed at opposite sides, as at 25, to fit over the shaft 13, and at its inner end it is provided with a valve chest or casing 26, communicating with the'interior of the section 6 r by an opening or port 27. The upper side of adapted to slide in grooves 31, formed on op- I posite sides of the valve-casing 26.

Below the valve-casing 26 is a second casing 32, extendingthroughout the-width of the section 6 and. communicating with the latter by a passage 33. Within this casing 32 is ar ranged a rectangular abutment 34, fitting downwardly-inclined grooves 35, formed in the casing 32, and similarly-inclined grooves 36, formed on opposite sides of the section 6.

Both the valve 29 and abutment 34 are provided with a stem 37 and 38, the stem 38 of the abutment 34 extending through an opening 39 of its casing. Each of the valvestems 37 and 38 is provided with a coupling 40, by means of which they are loosely secured to connecting-rods 41 and 42, carried by split rings 43 and 44, loosely surrounding eccentrics 45 and 46, mounted upon a shaft 47, said shaft having bearing in bearings 48 at the upper ends of the bracket-standards 3. One end of the shaft 47 extends beyond its supporting-bearing and is provided with a gear-pinion 49, which meshes with a gear-wheel 50, which is driven by the gear-wheel 23, carried by the shaft 13. The interposed gear-wheel 50 is mounted upon a short shaft 51, supported by a bracket 52, rising from the frame of the machine, the wheel being held in position by a lock-nut 53.

An exhaust-port 54 is provided at the bottom of the casing or cylinder 2, and it is'controlled by the abutment 34.

The operation of the engine as thus constructed will be readily understood by those skilled in the art. Steam entering the inlet 28 impinges against the piston-blade below the inlet, forcing said blade downward to revolve the shaft, the relative arrangement of the valve 29 and abutment 34 and their operating eccentrics being such that the exhaust-valve 34 is closed when the inlet-valve 29 is open, and vice versa. The partial revolution of the shaft 13 (in the present instance a quarterrevolution, there being four piston-blades) operates to open the exhaust-port 54 when the steam-inlet is closed, such alternate opening and closing of the inlet and exhaust being eifected through the gearing 23, 50, and 49, the connecting-rods 41 and 42, rings 43, and eccentrics 45 and 46, carried bythe shaft The inclination of the valves and their connecting-rods insures a direct andpositive reciprocation of the valves, while the operatin g gearing for the valves is operated directly from the engine-shaft.

I claim- 1. In arotary engine, the combination with a frame, of a casing supported therein, a shaft extending through said casing, a sleeve fixed to said shaft and provided with radial dia: metrically opposite piston-blades, passages projecting in an inclined position from said casing,and communicating therewith, a valve and an abutment within the passages, a shaft supported by standards above the level of the casing, eccentrics on said shaft and connections between said valves and eccentrics, and means for revolving the shaft carrying the eccentrics.

2. In a rotary engine, the combination with a frame comprising a box-like structure, of a cylinder or casing arranged within one end of the frame-box, a pair of bracket-standards rising from the opposite end of the frame-box; ashaft extending through the casing; a sleeve keyed to said shaft and provided with radially-projecting equidistant piston-blades; a gear-wheel upon one end of the shaft; independent passages projecting from the casing at an incline; avalve and an abutment within said passages; an eccentric-carrying shaft supported by the bracket-standards; eccentrics thereon connected to said valve and abutment; a gear-pinion on the eccentricshaft and a gear-wheel suitably mounted upon a support and meshing with said pinion and with the gear-wheel of the main shaft.

3. In a rotary engine, the combination with the casing-valve mechanism, and avalve and an abutment, of a rotary piston comprising a sleeve fixed to the main shaft and having a series of equidistant radially-projecting blades, each consisting of independent plates or sections secured together, with an interposed section of packing material, the latter projecting beyond the edges of the plates, annular packing-rings about the sleeve beyond the outer ends of the blades, and a boxing having semicircular seats in which the ends of the said sleeve revolubly fit, all substantially as shown and described.

4. In a rotary engine, the combination with the casing and main shaft, of a rotary piston on said shaft, inclined passages projecting upwardly from the casing, one of said passages having diametrically opposite grooves and provided with a valve having opposite ribs; the other passage extending across the width of the casing and formed with inclined ways; a flat abutment moving in said ways and means for reciprocating said valves alternately.

In testimony whereof I affix my signature in presence of two witnesses.

PETER A. ANDERSON.

Witnesses:

E. Y. SARLEs, A. B. LANDT. 

